Function(
 Function {
  head: Destructured(
   FunctionHeadDestructured {
    ellipsis: true,
    identifier: None,
    arguments: [
     FunctionHeadDestructuredArgument {
      identifier: "lib",
      default: None,
     },
     FunctionHeadDestructuredArgument {
      identifier: "config",
      default: None,
     },
    ],
   },
  ),
  body: Map(
   Map {
    recursive: false,
    bindings: [
     KeyValue(
      BindingKeyValue {
       from: [
        Raw(
         PartRaw {
          content: "options",
          span: Span {
           start: Position {
            line: 2,
            column: 3,
           },
           end: Position {
            line: 2,
            column: 10,
           },
          },
         },
        ),
        Raw(
         PartRaw {
          content: "foo",
          span: Span {
           start: Position {
            line: 2,
            column: 11,
           },
           end: Position {
            line: 2,
            column: 14,
           },
          },
         },
        ),
       ],
       to: FunctionApplication(
        FunctionApplication {
         function: PropertyAccess(
          PropertyAccess {
           expression: Identifier(
            Identifier {
             id: "lib",
             span: Span {
              start: Position {
               line: 2,
               column: 17,
              },
              end: Position {
               line: 2,
               column: 20,
              },
             },
            },
           ),
           attribute_path: [
            Raw(
             PartRaw {
              content: "mkOption",
              span: Span {
               start: Position {
                line: 2,
                column: 21,
               },
               end: Position {
                line: 2,
                column: 29,
               },
              },
             },
            ),
           ],
           default: None,
          },
         ),
         arguments: [
          Map(
           Map {
            recursive: false,
            bindings: [
             KeyValue(
              BindingKeyValue {
               from: [
                Raw(
                 PartRaw {
                  content: "type",
                  span: Span {
                   start: Position {
                    line: 3,
                    column: 5,
                   },
                   end: Position {
                    line: 3,
                    column: 9,
                   },
                  },
                 },
                ),
               ],
               to: FunctionApplication(
                FunctionApplication {
                 function: PropertyAccess(
                  PropertyAccess {
                   expression: Identifier(
                    Identifier {
                     id: "lib",
                     span: Span {
                      start: Position {
                       line: 3,
                       column: 12,
                      },
                      end: Position {
                       line: 3,
                       column: 15,
                      },
                     },
                    },
                   ),
                   attribute_path: [
                    Raw(
                     PartRaw {
                      content: "types",
                      span: Span {
                       start: Position {
                        line: 3,
                        column: 16,
                       },
                       end: Position {
                        line: 3,
                        column: 21,
                       },
                      },
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "nullOr",
                      span: Span {
                       start: Position {
                        line: 3,
                        column: 22,
                       },
                       end: Position {
                        line: 3,
                        column: 28,
                       },
                      },
                     },
                    ),
                   ],
                   default: None,
                  },
                 ),
                 arguments: [
                  PropertyAccess(
                   PropertyAccess {
                    expression: Identifier(
                     Identifier {
                      id: "lib",
                      span: Span {
                       start: Position {
                        line: 3,
                        column: 29,
                       },
                       end: Position {
                        line: 3,
                        column: 32,
                       },
                      },
                     },
                    ),
                    attribute_path: [
                     Raw(
                      PartRaw {
                       content: "types",
                       span: Span {
                        start: Position {
                         line: 3,
                         column: 33,
                        },
                        end: Position {
                         line: 3,
                         column: 38,
                        },
                       },
                      },
                     ),
                     Raw(
                      PartRaw {
                       content: "str",
                       span: Span {
                        start: Position {
                         line: 3,
                         column: 39,
                        },
                        end: Position {
                         line: 3,
                         column: 42,
                        },
                       },
                      },
                     ),
                    ],
                    default: None,
                   },
                  ),
                 ],
                },
               ),
              },
             ),
             KeyValue(
              BindingKeyValue {
               from: [
                Raw(
                 PartRaw {
                  content: "default",
                  span: Span {
                   start: Position {
                    line: 4,
                    column: 5,
                   },
                   end: Position {
                    line: 4,
                    column: 12,
                   },
                  },
                 },
                ),
               ],
               to: Identifier(
                Identifier {
                 id: "null",
                 span: Span {
                  start: Position {
                   line: 4,
                   column: 15,
                  },
                  end: Position {
                   line: 4,
                   column: 19,
                  },
                 },
                },
               ),
              },
             ),
            ],
            span: Span {
             start: Position {
              line: 2,
              column: 30,
             },
             end: Position {
              line: 5,
              column: 4,
             },
            },
           },
          ),
         ],
        },
       ),
      },
     ),
     KeyValue(
      BindingKeyValue {
       from: [
        Raw(
         PartRaw {
          content: "config",
          span: Span {
           start: Position {
            line: 7,
            column: 3,
           },
           end: Position {
            line: 7,
            column: 9,
           },
          },
         },
        ),
        Raw(
         PartRaw {
          content: "foo",
          span: Span {
           start: Position {
            line: 7,
            column: 10,
           },
           end: Position {
            line: 7,
            column: 13,
           },
          },
         },
        ),
       ],
       to: FunctionApplication(
        FunctionApplication {
         function: PropertyAccess(
          PropertyAccess {
           expression: Identifier(
            Identifier {
             id: "lib",
             span: Span {
              start: Position {
               line: 7,
               column: 16,
              },
              end: Position {
               line: 7,
               column: 19,
              },
             },
            },
           ),
           attribute_path: [
            Raw(
             PartRaw {
              content: "mkIf",
              span: Span {
               start: Position {
                line: 7,
                column: 20,
               },
               end: Position {
                line: 7,
                column: 24,
               },
              },
             },
            ),
           ],
           default: None,
          },
         ),
         arguments: [
          HasAttribute(
           HasAttribute {
            expression: Identifier(
             Identifier {
              id: "config",
              span: Span {
               start: Position {
                line: 7,
                column: 26,
               },
               end: Position {
                line: 7,
                column: 32,
               },
              },
             },
            ),
            attribute_path: [
             Raw(
              PartRaw {
               content: "value",
               span: Span {
                start: Position {
                 line: 7,
                 column: 35,
                },
                end: Position {
                 line: 7,
                 column: 40,
                },
               },
              },
             ),
            ],
           },
          ),
          PropertyAccess(
           PropertyAccess {
            expression: Identifier(
             Identifier {
              id: "config",
              span: Span {
               start: Position {
                line: 7,
                column: 42,
               },
               end: Position {
                line: 7,
                column: 48,
               },
              },
             },
            ),
            attribute_path: [
             Raw(
              PartRaw {
               content: "value",
               span: Span {
                start: Position {
                 line: 7,
                 column: 49,
                },
                end: Position {
                 line: 7,
                 column: 54,
                },
               },
              },
             ),
            ],
            default: None,
           },
          ),
         ],
        },
       ),
      },
     ),
    ],
    span: Span {
     start: Position {
      line: 1,
      column: 23,
     },
     end: Position {
      line: 8,
      column: 2,
     },
    },
   },
  ),
  span: Span {
   start: Position {
    line: 1,
    column: 1,
   },
   end: Position {
    line: 8,
    column: 2,
   },
  },
 },
)